8541557241 has 8 divisors (see below), whose sum is σ = 13015706304. Its totient is φ = 4880889840.

The previous prime is 8541557239. The next prime is 8541557251. The reversal of 8541557241 is 1427551458.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8541557241 - 2¹ = 8541557239 is a prime.

It is a super-3 number, since 3×8541557241³ (a number of 31 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8541557193 and 8541557202.

It is not an unprimeable number, because it can be changed into a prime (8541557251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203370390 + ... + 203370431.

It is an arithmetic number, because the mean of its divisors is an integer number (1626963288).

Almost surely, 2^8541557241 is an apocalyptic number.

It is an amenable number.

8541557241 is a deficient number, since it is larger than the sum of its proper divisors (4474149063).

8541557241 is a wasteful number, since it uses less digits than its factorization.

8541557241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406740831.

The product of its digits is 224000, while the sum is 42.

The square root of 8541557241 is about 92420.5455567105. The cubic root of 8541557241 is about 2044.1480733188.

The spelling of 8541557241 in words is "eight billion, five hundred forty-one million, five hundred fifty-seven thousand, two hundred forty-one".